CN101615026B - Multilayer dynamic tracking control method of processing process control system - Google Patents

Multilayer dynamic tracking control method of processing process control system Download PDF

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CN101615026B
CN101615026B CN200910023454XA CN200910023454A CN101615026B CN 101615026 B CN101615026 B CN 101615026B CN 200910023454X A CN200910023454X A CN 200910023454XA CN 200910023454 A CN200910023454 A CN 200910023454A CN 101615026 B CN101615026 B CN 101615026B
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information
control
tracking
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CN101615026A (en
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赵丽萍
徐大敏
要义勇
江平宇
秦永涛
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Xian Jiaotong University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The invention discloses a processing process control system and a multilayer dynamic tracking control method. A data processing and analyzing module of the system is connected with a data acquiring module; a processing process dynamic tracking module is connected with the data processing and analyzing module; a processing process control module is connected with the processing process dynamic tracking module; the data acquiring module is used for data acquisition in the multilayer processing process; the data processing and analyzing module is used for performing data analysis to information acquired by the data acquiring module; the processing process dynamic tracking module dynamically tracks the processing process according to the information which is analyzed and processed by the data processing and analyzing module; and the processing process control module is used for controlling the processing process. The invention has the advantages that the problem of information on-site detection, acquisition, analysis and dynamic tracking control of the cross-enterprise processing process can be solved by a layered method; and meanwhile, the stability of the processing process can be ensured through using an SPC control diagram to control the processing process.

Description

A kind of multilayer dynamic tracing control method of process control system
Technical field:
The invention belongs to the control field of process, relate to a kind of process dynamic tracing control method of multilayer.
Background technology:
Along with information and development of internet technology, expanded enterprise becomes current enterprise and realizes combination among the strong ones, wins the main enterprise schema that the globalization competition is adopted.And under expanded enterprise's environment, the complicacy of product is more and more higher, and cooperation between enterprises is constantly strengthened, and the manufacturing of product is often finished by a plurality of enterprise collaborations, and process also is dispersed between each enterprise.Numerous enterprises, machining cell and the equipment of also therefore relating to is followed the tracks of and controlled to the process of product, and machining information can not be obtained timely and effectively between enterprise owing to the environment isomery problem of striding enterprise causes, thereby can not in time find, handle the quality problems that occur, be difficult to guarantee on the whole the crudy of product.
Therefore, need provide a kind of dynamic tracing control method, can in expanded enterprise's scope, carry out dynamic tracking control to process effectively, thereby guarantee the crudy of product towards the complicated processing process.
Summary of the invention:
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of process dynamic tracing control method of multilayer is provided, comprise data acquisition module, data processing and analysis module, process dynamic tracking module and process control module;
Data processing is connected with data acquisition module with analysis module, and process dynamic tracking module is connected with analysis module with data processing, and the process control module is connected with process dynamic tracking module;
Described data acquisition module is a mechanical floor collection site process data from the bottom of process, the in-situ processing data via data processing and analysis module analyzing and processing after, offer process dynamic tracking module and process control module.Based on the data after gathering and analyzing, process dynamic tracking module and process control module can realize following the tracks of the process state, discovery procedure in time is unusual and process controlled, and guarantees the stable of process.
Process dynamic tracing control method based on multilayer:
(1) utilizes the data of data collecting module collected process; Described data acquisition module is mainly gathered the vibration signal etc. of process component dimensional accuracy, form accuracy and equipment by sensor and digital display equipment, and with the data transmission that collects in data processing and analysis module;
(2) utilize data processing and analysis module to analyze the information of data collecting module collected; Described data processing and analysis module are made of function library, set of algorithms and knowledge base.By this module, can handle all kinds of process and device data that front-end collection arrives, analyze the information such as process capability, equipment state, part processing state of process, and analysis result is stored.
(3) utilize process dynamic tracking module dynamic tracking process by different level; Described process dynamic tracking module is based on the Treatment Analysis result of data processing and analysis module, and tracking process device level processing tasks information, operation level task sequence information, process capability information, equipment operation abnormal information, part processing status information, status information of equipment, operation are finished information such as number, operation completion rate, operation qualification rate.Utilize process control module control process; Described process control module guarantees the stable of process by SPC control chart control process.Described process dynamic tracking module and process control module are made of process dynamic tracking controlling models;
Processing performance element with each layer is the node of each layer process tracking Control, sets up multi-level process dynamic tracking controlling models:
L iX j＝(IQ i，OQ i，i jQ c)
Wherein:
1. i=1,2,3,4 is the residing number of plies of node, represents core enterprise's layer, member enterprise's layer, machining cell layer, process equipment layer respectively; J=1,2 ..., n represents to be in the node number of same level respectively; IQ iRelevant machining information for input; OQ iProcess tracking Control result for output; i jQ cJ processing tracking Control unit representing the i layer.
2. MCU represents the set of machining control at all levels unit:
MCU = ee . Q c = { pe 1 . Q c ∪ pe 2 . Q c ∪ . . . . . . ∪ pe n . Q c } pe i . Q c = { c 1 . Q c ∪ c 2 . Q c ∪ . . . . . . ∪ c n . Q c } c i . Q c = { e 1 . Q c ∪ e 2 . Q c ∪ . . . . . . ∪ e n . Q c }
Wherein: Q cExpression process control module, ee represents core enterprise's layer, pe line-up of delegates enterprises level, c represents the machining cell layer, and e represents the process equipment layer.
3. the relevant machining information difference of different layers input, correspondingly the process tracking Control result of each layer output is also different:
Core enterprise's layer (when being i=1), the machining information of input is IQ normally Ee={ IQ Ee(A), IQ Ee(B), IQ Ee(C) ... }=the whole processing request of product, and member enterprise is responsible for the processing request of parts, product completion date ..., the tracking Control of output is OQ as a result Ee(D) then be the whole machining precision, product percent of pass etc. of product.
Member enterprise's layer (when being i=2), the machining information of input is IQ Pe={ IQ Pe(A), IQ Pe(B), IQ Pe(C) ... }=processing request of sub-product, and member enterprise is responsible for the processing request of parts, product completion date ..., the tracking Control of output is OQ as a result Pe(D) then be the machining precision, overall task completion rate etc. of sub-product.
Machining cell layer (when being i=3), the machining information of input is IQ normally c={ IQ c(A), IQ c(B), IQ c(C) ... }=workshop level parts processing tasks, and workshop level parts process information, status information of equipment, each operation number of tasks of workshop ..., the tracking Control of output is OQ as a result c(D) then be the completion rate, qualification rate etc. of workshop level equipment state, working procedure states, process capability index, operation processing abnormal information, multiple operation task.
Process equipment layer (when being i=4), the machining information of input is IQ normally c={ IQ c(A), IQ c(B), IQ c(C) ... }=the process equipment status data, and operation processing tasks information, operation process time, the part processing status information ..., the tracking Control of output is OQ as a result c(D) then be that process ability, process abnormal information, the process equipment state workpiece number of rejects, operation are finished number, operation completion rate, workpiece qualification rate etc.
By setting up each level processing tracking Control unit processing tracking and controlling method corresponding with each node, adopt suitable tracking and controlling method according to specific process, process is carried out tracking and monitoring, and utilize the SPC control chart that the process control graph parameter is optimized.
The invention has the advantages that:
Data acquisition module and data processing and analysis module are realized collection, the storage to the process data and are handled in real time and analyze, and reach collection, analysis, real-time update process information, for dynamic tracking control process lays the foundation.
Process dynamic tracking module and process control module have been carried out multi-level formalized description and expression intuitively by process dynamic tracking controlling models with the enterprise product process of striding of complexity; Be in the process control module of different levels,, export different tracking Control results, be convenient in time to find the quality problems that exist in the process according to the different machining informations of input; The process control module guarantees the stable of process by SPC control chart control process; The machining information of parts and equipment is visited, followed the tracks of to user's energy online in real time of different regions, browses the procedural information and the object information of on-site supervision, analysis, assessment, decision-making, reaches the purpose of remote monitoring and decision-making.
Description of drawings:
Fig. 1 is process control module figure of the present invention;
Fig. 2 is the process dynamic tracking controlling models figure of multilayer of the present invention;
Embodiment:
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
Referring to Fig. 1,2, a kind of process dynamic tracing control method based on multilayer comprises data acquisition module, data processing and analysis module, process dynamic tracking module and process control module;
Data processing is connected with data acquisition module with analysis module, and process dynamic tracking module is connected with analysis module with data processing, and the process control module is connected with process dynamic tracking module;
Described data acquisition module is used for the data acquisition of process, described data processing and analysis module are used for the information of data collecting module collected is carried out data analysis, the information dynamic tracking process of described process dynamic tracking module after according to data processing and analysis module analyzing and processing, described process control module is used to control process.Data acquisition module is a mechanical floor collection site process data from the bottom of process, the in-situ processing data via data processing and analysis module analyzing and processing after, offer process dynamic tracking module and process control module.Based on the data after gathering and analyzing, process dynamic tracking module and process control module can realize following the tracks of the process state, discovery procedure in time is unusual and process controlled, and guarantees the stable of process.
Process dynamic tracing control method based on multilayer:
(1) utilizes the data of data collecting module collected process; Described data acquisition module is mainly gathered the vibration signal etc. of process component dimensional accuracy, form accuracy and equipment by sensor and digital display equipment, and with the data transmission that collects in data processing and analysis module;
(2) utilize data processing and analysis module to analyze the information of data collecting module collected; Described data processing and analysis module are made of function library, set of algorithms and knowledge base.By this module, can handle all kinds of process and device data that front-end collection arrives, analyze the information such as process capability, equipment state, part processing state of process, and analysis result is stored.
(3) utilize process dynamic tracking module dynamic tracking process; Described process dynamic tracking module is based on the Treatment Analysis result of data processing and analysis module, and tracking process device level processing tasks information, operation level task sequence information, process capability information, equipment operation abnormal information, part processing status information, status information of equipment, operation are finished information such as number, operation completion rate, operation qualification rate.Utilize process control module control process; Described process control module guarantees the stable of process by SPC control chart control process.Described process dynamic tracking module and process control module are made of process dynamic tracking controlling models;
Processing performance element with each layer is the node of each layer process tracking Control, sets up multi-level process dynamic tracking controlling models:
L iX j＝(IQ i，OQ i，i jQ c)
Wherein:
1. i=1,2,3,4 is the residing number of plies of node, represents core enterprise's layer, member enterprise's layer, machining cell layer, process equipment layer respectively; J=1,2 ..., n represents to be in the node number of same level respectively; IQ iRelevant machining information for input; OQ iProcess tracking Control result for output; i jQ cJ processing tracking Control unit representing the i layer.
2. MCU represents the set of machining control at all levels unit:
MCU = ee . Q c = { pe 1 . Q c ∪ pe 2 . Q c ∪ . . . . . . ∪ pe n . Q c } pe i . Q c = { c 1 . Q c ∪ c 2 . Q c ∪ . . . . . . ∪ c n . Q c } c i . Q c = { e 1 . Q c ∪ e 2 . Q c ∪ . . . . . . ∪ e n . Q c }
Wherein: Q cExpression process control module, ee represents core enterprise's layer, pe line-up of delegates enterprises level, c represents the machining cell layer, and e represents the process equipment layer.
3. the relevant machining information difference of different layers input, correspondingly the process tracking Control result of each layer output is also different:
Core enterprise's layer (when being i=1), the machining information of input is IQ normally Ee={ IQ Ee(A), IQ Ee(B), IQ Ee(C) ... }=the whole processing request of product, and member enterprise is responsible for the processing request of parts, product completion date ..., the tracking Control of output is OQ as a result Ee(D) then be the whole machining precision, product percent of pass etc. of product.
Member enterprise's layer (when being i=2), the machining information of input is IQ Pe={ IQ Pe(A), IQ Pe(B), IQ Pe(C) ... }=processing request of sub-product, and member enterprise is responsible for the processing request of parts, product completion date ..., the tracking Control of output is OQ as a result Pe(D) then be the machining precision, overall task completion rate etc. of sub-product.
Machining cell layer (when being i=3), the machining information of input is IQ normally c={ IQ c(A), IQ c(B), IQ c(C) ... }=workshop level parts processing tasks, and workshop level parts process information, status information of equipment, each operation number of tasks of workshop ..., the tracking Control of output is OQ as a result c(D) then be the completion rate, qualification rate etc. of workshop level equipment state, working procedure states, process capability index, operation processing abnormal information, multiple operation task.
Process equipment layer (when being i=4), the machining information of input is IQ normally c={ IQ c(A), IQ c(B), IQ c(C) ... }=the process equipment status data, and operation processing tasks information, operation process time, the part processing status information ..., the tracking Control of output is OQ as a result c(D) then be that process ability, process abnormal information, the process equipment state workpiece number of rejects, operation are finished number, operation completion rate, workpiece qualification rate etc.
By setting up each level processing tracking Control unit processing tracking and controlling method corresponding with each node, adopt suitable tracking and controlling method according to specific process, process is carried out tracking and monitoring, and utilize the SPC control chart that the process control graph parameter is optimized.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.

Claims (1)

1. the multilayer dynamic tracing control method of a process control system is characterized in that:
(1) utilize data collecting module collected to stride the data of enterprise's process; Described data acquisition module is mainly gathered the vibration signal of process component dimensional accuracy, form accuracy and equipment by sensor and digital display equipment, and with the data transmission that collects in data processing and analysis module;
(2) utilize data processing and analysis module to analyze the information of data collecting module collected; Described data processing and analysis module are made of function library, set of algorithms and knowledge base; Handle all kinds of process and the device data that front-end collection arrives by data processing and analysis module, analyze process capability, equipment state and the part processing state of process, and analysis result is stored;
(3) utilize process dynamic tracking module dynamic tracking process; Described process dynamic tracking module is based on the Treatment Analysis result of data processing and analysis module, and tracking process device level processing tasks information, operation level task sequence information, process capability information, equipment operation abnormal information, part processing status information, status information of equipment, operation are finished number, operation completion rate, operation qualification rate; Utilize process control module control process; Described process control module guarantees the stable of process by SPC control chart control process; Described process dynamic tracking module and process control module are made of process dynamic tracking controlling models;
Processing performance element with each layer is the node of each layer process tracking Control, sets up multi-level process dynamic tracking controlling models:
L iX j＝(IQ i，OQ i，i jQ c)
Wherein:
1. i=1,2,3,4 is the residing number of plies of node, represents core enterprise's layer, member enterprise's layer, machining cell layer, process equipment layer respectively; J=1,2 ..., n represents to be in the node number of same level respectively; IQ iRelevant machining information for input; OQ iProcess tracking Control result for output; i jQ cJ processing tracking Control unit representing the i layer;
2. MCU represents the set of machining control at all levels unit:
MCU = ee . Q c = { pe 1 . Q c ∪ pe 2 . Q c ∪ . . . . . . ∪ pe n . Q c } pe i . Q c = { c 1 . Q c ∪ c 2 . Q c ∪ . . . . . . ∪ c n . Q c } c i . Q c = { e 1 . Q c ∪ e 2 . Q c ∪ . . . . . . ∪ e n . Q c }
Wherein: Q cExpression process control module, ee represents core enterprise's layer, pe line-up of delegates enterprises level, c represents the machining cell layer, and e represents the process equipment layer;
3. the relevant machining information difference of different layers input, correspondingly the process tracking Control result of each layer output is also different:
At core enterprise's layer, promptly during i=1, the machining information of input is IQ normally Ee={ IQ Ee(A), IQ Ee(B), IQ Ee(C) ... }=the whole processing request of product, and member enterprise is responsible for the processing request of parts, product completion date ..., the tracking Control of output is OQ as a result Ee(D) be the whole machining precision or the product percent of pass of product;
At member enterprise's layer, promptly during i=2, the machining information of input is IQ Pe={ IQ Pe(A), IQ Pe(B), IQ Pe(C) ... }=processing request of sub-product, and member enterprise is responsible for the processing request of parts, product completion date ..., the tracking Control of output is OQ as a result Pe(D) be the machining precision or the overall task completion rate of sub-product;
At the machining cell layer, promptly during i=3, the machining information of input is IQ normally c={ IQ c(A), IQ c(B), IQ c(C) ... }=workshop level parts processing tasks, and workshop level parts process information, status information of equipment, each operation number of tasks of workshop ..., the tracking Control of output is OQ as a result c(D) be the completion rate or the qualification rate of workshop level equipment state, working procedure states, process capability index, operation processing abnormal information, multiple operation task;
At the process equipment layer, promptly during i=4, the machining information of input is IQ normally c={ IQ c(A), IQ c(B), IQ c(C) ... }=the process equipment status data, and operation processing tasks information, operation process time, the part processing status information ..., the tracking Control of output is OQ as a result c(D) be that process ability, process abnormal information, the process equipment state workpiece number of rejects, operation are finished number, operation completion rate or workpiece qualification rate;
By setting up each level processing tracking Control unit processing tracking and controlling method corresponding with each node, adopt suitable tracking and controlling method according to specific process, process is carried out tracking and monitoring, and utilize the SPC control chart that the process control graph parameter is optimized.
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